What kind of short term memory loss is associated with benzodiazepines?

Anterograde amnesia. Technically called anterograde amnesia, this is impaired "recording" of information. Since it isn't recorded into memory, it can't be recalled later. (this is in contrast to retrograde amnesia, where previously stored material can't be retrieved.) there are also deficits in attention and concentration, which in turn can impair memory encoding. Overall, one appears scattered & absent-minded.